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K648

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K537 K708
#K648

Description

China GBT K648 conventional cast superalloy and K648 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K648
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K648 GBT China conventional cast superalloy
K4648
K4708
K002
K130
K163
K4169
K202
K242
K536
K537

Chemical composition(mass fraction)(wt.%) of the K648

C(％) Si(％) S(％) Cr(％) Ni(％) Mo(％) W(%) B(%) Nb(%) Al(%) Ti(%) Fe(%)
0.03-0.10 ≤0.30 0.010000000000000000 32. 00-35.00 Bal 2. 30-3. 50 4.30-5. 50 ≤0. 008 0. 70-1.30 0.70-1.30 0.70-1.30 ≤0.50

Mechanical Properties of steel grade K648

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
177 (≥) 464 (≥) 14 12 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade K648

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
42 - -     0.21 -  
667 779 - 34.3 143   -  
442 - 11 11.2   234 441

Heat Treatment of steel grade K648

Heat treated : 1754°C - 1745°C

Technological Curves of steel grade K648

Cross Reference Table (Equivalent Grade) of K648

Grade Standard Country Application
K648 GBT China conventional cast superalloy
K537 K708
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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